we're learning much more about hi older brother, tamerlan. his mother says he called during the firefight with police thursday night, telling her, mama, i love you, before the phone went dead. >>> those killed and injured in monday's attack will be remembered today with a mehmet of silence across massachusetts at 2:50 p.m. off now one week ago.bomb went >>> air travelers are bracing for indefinite flight delays across the country this morning. thousands of traffic controllers are expecte face furloughs. the new york airports delays are predicted to last at least an hour. up to 6700 flights could be delayed every day. >>> meanwhile, overseas, rescue teams in china have now made their way to areas cut off after saturday's devastating earthquake there. relief supplies not enough to make demand. video shows the moment the 6.6 quake hit. at least 188 people are known dead. 11,000-plus injured. >>> we turn to our economy and some relief for drives. experts are predicting that gas prices could drop another 20 corrects by memorial day because of slum